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Back-up / over-ride settingshttp://www.refrigeration-engineer.com/forums/showthread.php?49799-Back-up-over-ride-settings&goto=newpost
Sun, 16 Dec 2018 20:19:03 GMTI have a CO2 rack with a primary and back up control system. The back up contoller acts as a watchdog and takes over from the primary controller if the rack suction pressures increase above set-point for a time period.
As a rule of thumb at what pressure would you expect to see a pack (HT or...I have a CO2 rack with a primary and back up control system. The back up contoller acts as a watchdog and takes over from the primary controller if the rack suction pressures increase above set-point for a time period.
As a rule of thumb at what pressure would you expect to see a pack (HT or LT) go into back-up and how long would you expect the time delay to be?
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